signal: Document problem with type of SIGRTMIN, SIGRTMAX on OSF/1 5.1.

[pspp] / doc / posix-headers / signal.texi

diff --git a/doc/posix-headers/signal.texi b/doc/posix-headers/signal.texi
index cb4f580e89ecb9c2af4294a626c8ef160ca23804..9056d1e3e6d968630e189c3e86e9a90aad3d7c8b 100644 (file)
--- a/doc/posix-headers/signal.texi
+++ b/doc/posix-headers/signal.texi
@@ -1,26 +1,42 @@
 @node signal.h
 @section @file{signal.h}
 
-POSIX specification: @url{http://www.opengroup.org/susv3xbd/signal.h.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html}
 
 Gnulib module: signal
 
 Portability problems fixed by Gnulib:
 @itemize
 @item
+@code{volatile sig_atomic_t} is rejected by older compilers on some
+platforms:
+AIX.
+@item
 @code{sigset_t} is only declared in <sys/types.h> on some platforms:
 mingw.
-
 @item
 @code{struct sigaction} and @code{siginfo_t} are missing on some
 platforms:
 mingw.
+@item
+@code{struct sigaction} lacks the @code{sa_sigaction} member on some
+platforms:
+Irix 5.3, Interix 3.5.
+@item
+The signal @code{SIGPIPE} is not defined on some platforms:
+mingw.
+@item
+The macro @code{SA_NODEFER} is not defined on some platforms:
+Interix 3.5.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
 @item
-@code{struct sigaction} lacks the @code{sa_sigaction} member on some
-platforms; this can also be detected by whether @code{SA_SIGINFO} is defined:
-Interix 3.5.
+Many signals are not defined on some platforms:
+mingw.
+@item
+The macros @code{SIGRTMIN} and @code{SIGRTMAX} expand to an expression of type
+@code{long} instead of @code{int} on some platforms:
+OSF/1 5.1.
 @end itemize